Pete Nelson is famous for catering to the lofty (literally) wishes of his clients on Animal Planet’s hit series Treehouse Masters and for bringing to life spectacular projects including a custom “spa in a tree” for Dove Men+Care. But what does the experienced arboreal architect really thinks makes a great home?

To learn the best of the best, we asked the TV personality to play a special treehouse edition of our favorite game: Interior Design Would You Rather.

He weighed in on why grown-up treehouses are better than kiddy ones, and cast a definitive vote in showdowns between swings and zip lines, and rope bridges and rope ladders.

Watch the full video above to see where Nelson comes down on hammocks, Arbor Day, outdoor showers and more. And most importantly, what he’d happily go with out: electricity or running water?